e1000_check_for_link_vf(9)

📦 version 7.3.1, in nixpkgs unstable

okay so welcome to the glow-up of e1000_check_for_link_vf(9), straight out of the Kernel API Manual. she's a little function with big main character energy, and we're gonna go through her whole vibe check together. no skips, no skimming, we're doing this properly 💅

✨ NAME ✨

e1000_check_for_link_vf — literally just checking for link on a virtual interface, that's her whole job 🦋

🌸 SYNOPSIS 🌸

s32 e1000_check_for_link_vf (struct e1000_hw *hw );

she takes one thing, returns one thing, and she's iconic about it 👑

🎀 ARGUMENTS 🎀

  • hw — pointer to the HW structure 👀 that's it, that's the whole argument list. one (1) pointer to the hardware struct, and she's off to the races.

🔥 DESCRIPTION 🔥

So here's the tea ☕ — she checks to see if the underlying PF is still talking to the VF, and if it is? she reports the link state straight to the hardware. slay. 💖

But bestie… if the PF isn't talking anymore? she reports link down and returns an error. 😭 no cap, that's the whole flow.

Basically: PF still chatting → tell the hardware the link state. PF gone quiet → link down + error return. periodt. 🫶

👑 SEE ALSO 👑

The kernel file she lives in, fr fr:

./drivers/net/ethernet/intel/igbvf/vf.c

and her whole friend group, the _vf crew, all showing up together 💜:

🌈 quick reminder bestie: that error return when the PF goes quiet is real, so don't ignore her when she's reporting link down — she's not being dramatic, she's being accurate 💀

and that's the page!! 🎉 source is ./drivers/net/ethernet/intel/i... and it's dated October 2026, manual e1000_check_for_link_vf(9) — okay love u bye, go read your _vf functions, mwah 😘💖✨

📦 where this page comes from